Egypt's new interim president has called on all political groups to meet this week in an attempt to end the violence. Adly Mansour's initiative comes as two senior figures were appointed to help lead the government.Al Jazeera's Erica Wood reports

Egypt's interim president Adli Mansour is promising a new constitution within four months, to be followed by parliamentary and presidential elections. This comes as more than 50 people were killed during a mass sit-in in support of the ousted President Mohamed Morsi. The Muslim Brotherhood claims security forces used live rounds and tear gas against the crowd but the military blames the deaths on terrorists. Stephen Lendman, radio host and author, joins RT's studio